- From: Jeremy Carroll <jjc@hplb.hpl.hp.com>
- Date: Fri, 8 Feb 2002 16:03:55 +0100
- To: <w3c-rdfcore-wg@w3.org>
> S-B is critical for anybody who wants to write > <dc:date>2000-12-23</dc:date> > and wants tools to flag an inconsistency when they write > <dc:date>not the lexical form of any date</dc:date> Well, if we only had S-B that is all that datatyping will do. Relating the string "2000-12-23" to the day that was my brother's 35th birthday happens (untidily) within the application and not within RDF. Other ways that the same effect can be achieved include: - using P - using TDL global idiom - using Pat's flash bermuda triangle model theory with all bells and whistles - using the syntactic transform that behind the scenes sticks in an extra rdf:value arc. All of these have what I perceive as an advantage of actually doing some model theory concerning dates. This is why I haven't yet given in on tidyness. I could settle for tidyness if we are using the syntactic transform, but if, as I think is likely, some account of datatyping and DC + PRISM + RSS + ... is needed then we will need one of the above (S-B included). As I see it the WG has responsibilities both to: - the metadata community, who don't do inference, and don't need a model theory, and don't much care about underlying semantics of a bit of RDF (for whom not having a model theory for datatyping is likely to be acceptable) and to - the logic community, who have been impressed with the MT so far, and who I fear would be disappointed at a datatyping solution that is outside the MT. Jeremy
Received on Friday, 8 February 2002 09:56:45 UTC